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Paper Abstract and Keywords
Presentation 2017-10-19 10:20
Performance of MMSE Interference Rejection followed by Joint Maximum Likelihood Detection for Distributed Antenna Network
Hirokazu Miyagi, Yukitoshi Sanada (Keio Univ.) RCS2017-172
Abstract (in Japanese) (See Japanese page) 
(in English) In this research minimum mean square error (MMSE) interference rejection followed by joint maximum likelihood detection (MLD) is applied to a receiver in a distributed antenna networks (DAN). In the DAN, not only the desired signals, but also the interference signals may reach from nearby uncoordinated antennas. For the overloaded signal situation, non-linear detection schemes such as joint maximum likelihood detection can be applied to the received signals. However, the amount of metric calculations in the joint MLD increases exponentially with the number of signal streams. Therefore, MMSE interference rejection followed by MLD detection is proposed. The proposed scheme reduces the complexity by a factor of $1/4^{N_T-1}$ where $N_T$ is the number of interference signals. The effect of residual interference after the MMSE interference rejection is evaluated. Numerical results obtained through computer simulation show that the performance of the proposed scheme is about $4.5,{rm dB}$ worse at a bit error rate (BER) of $10^{-3}$ as compared with that of the joint MLD while the complexity reduces by a factor of $4$ for QPSK signal streams. The BER performance degradation can be suppressed to about $3.0,{rm dB}$ by adjusting the value of the coefficient in the MMSE matrix.
Keyword (in Japanese) (See Japanese page) 
(in English) 5G / Overloaded MIMO / DAN / MMSE interference rejection / Joint MLD / / /  
Reference Info. IEICE Tech. Rep., vol. 117, no. 246, RCS2017-172, pp. 25-30, Oct. 2017.
Paper # RCS2017-172 
Date of Issue 2017-10-12 (RCS) 
ISSN Print edition: ISSN 0913-5685  Online edition: ISSN 2432-6380
All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034)
Download PDF RCS2017-172

Conference Information
Committee RCS  
Conference Date 2017-10-19 - 2017-10-20 
Place (in Japanese) (See Japanese page) 
Place (in English) Tohoku Institute of Technology 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Wireless Communication Schemes, Wireless Communication Systems, Wireless Standards, Future Wireless Systems, etc. 
Paper Information
Registration To RCS 
Conference Code 2017-10-RCS 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Performance of MMSE Interference Rejection followed by Joint Maximum Likelihood Detection for Distributed Antenna Network 
Sub Title (in English)  
Keyword(1) 5G  
Keyword(2) Overloaded MIMO  
Keyword(3) DAN  
Keyword(4) MMSE interference rejection  
Keyword(5) Joint MLD  
1st Author's Name Hirokazu Miyagi  
1st Author's Affiliation Keio University (Keio Univ.)
2nd Author's Name Yukitoshi Sanada  
2nd Author's Affiliation Keio University (Keio Univ.)
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Date Time 2017-10-19 10:20:00 
Presentation Time 20 
Registration for RCS 
Paper # IEICE-RCS2017-172 
Volume (vol) IEICE-117 
Number (no) no.246 
Page pp.25-30 
#Pages IEICE-6 
Date of Issue IEICE-RCS-2017-10-12 

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